Connor Trinneer, who played the chief engineer Charles "Trip" Tucker on the Star Trek: Enterprise series, will be part of Spock Days 2012.

A total of five guest stars are expected to attend Vulcan's annual Star Trek convention this June.

The Vulcan Tourism Society had asked through Facebook which guest stars fans would like to see, said Pooley.

"That's the goal here, is to find out what and who the fans want and then try to deliver," she said.

Connor seemed to be a popular request among fans, she said. Tourism had already been in contact with Connor's agent, who Pooley met and spent time with during the convention in Las Vegas last August.

It had already been announced that Garrett Wang, the actor who played Harry Kim on Star Trek: Voyager and last year's guest, would be returning to Spock Days as master of ceremonies.

Although he'll be more involved in the operational side of things, she added he would still be doing question-and-answer session and posing for photos like last year.

Arlene Martel, who played Spock's wife T'Pring in Star Trek: The Original Series, will also be coming for Spock Days.

On Friday, another guest will be announced at the Tourism and Trek Station during a wine and cheese event that starts at 7 p.m. and costs $10 to attend. That admission price includes snacks and spirits.

Come Spock Days, Pooley said the Star Trek Walk of Fame will have come a long ways.

"We've got the artist working like crazy" on the sidewalk squares, she said.

During the convention in Las Vegas, Pooley said many handprints were acquired, although some are still needed.

There will likely be 25 completed Star Trek Walk of Fame sidewalk squares by Spock Days, but Pooley is optimistic that there could be more.

Even if there aren't any more than that this year, more will be added over time.

"We'll keep building this up," she said. "This isn't a project that has a definite end in sight - it's a work in progress."